HOT TUB Heater Not Working? 3 Common Problems | Swim University

Is your hot tub heater not working properly or does your hot tub heat up only to cool down again? Here are 3 common hot tub heater problems and hot tub heater troubleshooting tips.

⏰ Timestamps:
00:00 - Introduction to Hot Tub Heater Troubleshooting
00:16 - Problem #1: Hot Tub Isn't Staying Hot
00:55 - Problem #2: Hot Tub Temperature Fluctuates
01:25 - Problem #3: Hot Tub Isn't Heating At All
01:57 - How To Replace Your Hot Tub Heating Element
02:34 - How To Maintain Your Hot Tub Heating Element
03:16 - When To Call A Professional
03:36 - Hot Tub Care Video Course

Swim University®️ has made swimming pool and hot tub care easy for more than 10 million homeowners. And each year, we continue to help more people with water chemistry, cleaning, and troubleshooting. We know taking care of a swimming pool or spa can be difficult. And it’s hard to find a trusted source of information. We get it! This is the reason we created Swim University®️.

[SwimUniversity]

We hope this helps you troubleshoot your hot tub heater problems! And be sure to check out our Hot Tub Care Video course at www.swimuniversity.com/spa for more hot tub maintenance help (use the code VIDEO for 10% off)

[KimberlySmith-ebtp]

Thank you for the useful info and I have found your PDF book very useful. I have a question on resetting a TCO Switch in my Dimensions one Hot Tub. I have no hot water flowing out of my spa. Water is flowing out of the Ozone area.

[lesterchin]

If the hot tub is not heating at all, FIRST try to reset the electronics of the hot tub by turning off the power supply (including the breaker switches), waiting a minute, then turning the power and breaker switches back on). Then check to see if the hot tub heats up.

[LoobyLou]

Is there a way of diagnosing the issue?

[williamrizzo]

Luckily it's 80 degrees this morning or I live in the Florida Keys so the heater doesn't have to work too hard.

[ronpaster]

So I can’t find any videos that would help me with my heating issue. My jacuzzi panel only lets me increment the temp via the up/down arrows to 90 degrees. Its holds the temp no problem, but the display panel does not increase beyond 90 degrees. It used to adjust and heat up to 104 degrees. Any ideas on this one?

[donnaflores]

My hot tub keeps showing eo2 I've checked the line with the bubbles and that seems clear but as soon as I add the heat icon it shuts itself off I don't know what to do please help

[debbienelson]

My Saluspa heated up to 38C (100F), but will not go any higher. Have rebooted it, but no difference

[gregkilleen]

Sure this is the wrong video but if the blower is bad would it cause the panel to not work?

[shawntoadvine]

Thank you for the video. So, I replaced the balboa heater element, and the hot tub still isn't heating. Is it safe to say that I need to replace my pump now?

[awoonga]

I've got a Chinese control panel Ethink KL8-3A, everything works fine except the temp is set for 98 degrees but will only heat to 89 degrees then starts cooling down and heater will not kick in again, I have to turn it off until temp drops below 77 degrees then heater will work again any clues. Have checked water flow, filter, air locks, thermostat all good.

[swedishkev]

Hi there again, still trying to work out if my heater is needed replacing or not. Have the balboa system here in Sweden without the pressure switch. Has the sensors on either side. Hot tub down to only 17 degrees now, it has become cold minus 7. I don't know if there is some built-in freeze safeguard. I am guessing that the heat maintained is just coming from the pump. I have done some more tests today. There is power 230v going to the circuit board, but not 230v going to the element. I have done the continuity test or ohms test with the power turned off, with a multimeter put it on the 0L setting. It said 0 reading. Then l put it on a setting to bleep, not sure if it was the right setting, still was 0L and then it read 19 ish. Does this sound more like a relay problem or is there a possibility that it might still just need a new heater replacement? I am thinking if I did not have 230v going to the element, then a new one can not suddenly give 230vs or ??? No errors on the display panel either.

[Theundisputedtruth]

Does the filter area have anytbing to do with it heating

[kristygorseth]

My hot tub heats up and pops a circuit is that the heating element

[bufferzone]

Does the water have to be drained before the replacement?

[skal]

really? all this video is about: 1) disconnect heater 2) replace the heater with a new one 3) reconnect heater ??? geee...

[ikpalian]

My jacuzzi not heating and the heat led light is blinking

[inlightenedbeing]

Just got it .. it heated up then nothing

[Theundisputedtruth]

Sounds like hot tub men are like mechanics and TV repairs can't get a solid answer on nothing. Good luck to those who can't get a good answer and have to watch 309 videos like me